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artcher [175]
2 years ago
15

In the case of a rigid rorator, i.e. two masses M1 and M2 placed on a rigid weightless rod, we start from the Schrodinger equati

on for two particles 1 and 2, and then we separate the movement of the center of masses. Give the formulas of both masses that we get as part of this procedure. Calculate these masses in atomic mass units for the HD molecule by approximating the masses H and D with their mass numbers.
Chemistry
1 answer:
just olya [345]2 years ago
5 0
Bewklskenenekwkwjwjwkwkwkwwkwmkwkwkwkwkwowmwwmkwkwwkwnkwowkwbwwhwkkw
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There are two kinds of elements that didn't appear on the periodic table until after 1892. What kinds are they and why do you th
Lelu [443]

Your Question: There are two kinds of elements that didn't appear on the periodic table until after 1892. What kinds are they and why do you think it took so long to discover them?

The Answer: Moseley’s analysis enabled chemists to refine the table further  and reveal more gaps, which suggested that there were more new  elements waiting to be discovered, with atomic numbers 43, 61, 72  and 75. Scientists subsequently found these elements—now  known as technetium, promethium, hafnium and rhenium,  respectively.

Explanation: Physicist Henry Moseley discovered the atomic number of each element using x-rays, which led to more accurate organization of the periodic table. We will cover his life and discovery of the relationship between atomic number and x-ray frequency, known as Moseley's Law.

Remember to read study guides, lessons and notes to rely yourself on; key to success is working hard. Good Luck!

5 0
3 years ago
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A solution is made by dissolving 26.42g of (NH4)2so4 in enough h2o to make 50.00ml of solution
DochEvi [55]
Moles of ammonium sulfate = 26.42/molar mass of (NH4)2SO4
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Molarity = moles of ammonium sulfate/volume of solution
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             =                    3.8M

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7. Which of the following pairs of elements is most likely to form an ionic
yaroslaw [1]

Answer:

not sure if this us right but oxygen and fluorine? I learned chem but I forgot about it kinda sorry

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Which of the following is true about most predators? (Select all that apply.)
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3 years ago
i need help i have a homework assignment to finish and this is the last question help please and thank u
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